The Fiatagri 5135990 retaining ring is a genuine CNH Industrial component designed for secure fastening within various agricultural and construction machinery. This essential part ensures the proper retention of components, preventing axial movement and maintaining system integrity. It features an outer diameter of 51.5 mm, an inner diameter of 45.5 mm, and a thickness of 1.5 mm, providing a precise fit for compatible applications across a wide range of New Holland, Case IH, Steyr, Fiatagri, and Ford models.